1 /***************************************************************************
2 * Plug-in for TAS5110C1B image sensor connected to the SN9C1xx PC Camera *
3 * Controllers *
4 * *
5 * Copyright (C) 2004-2007 by Luca Risolia <luca.risolia@studio.unibo.it> *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the Free Software *
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
20 ***************************************************************************/
21
22 #include "sn9c102_sensor.h"
23 #include "sn9c102_devtable.h"
24
25
tas5110c1b_init(struct sn9c102_device * cam)26 static int tas5110c1b_init(struct sn9c102_device* cam)
27 {
28 int err = 0;
29
30 err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x44, 0x01},
31 {0x00, 0x10}, {0x00, 0x11},
32 {0x0a, 0x14}, {0x60, 0x17},
33 {0x06, 0x18}, {0xfb, 0x19});
34
35 err += sn9c102_i2c_write(cam, 0xc0, 0x80);
36
37 return err;
38 }
39
40
tas5110c1b_set_ctrl(struct sn9c102_device * cam,const struct v4l2_control * ctrl)41 static int tas5110c1b_set_ctrl(struct sn9c102_device* cam,
42 const struct v4l2_control* ctrl)
43 {
44 int err = 0;
45
46 switch (ctrl->id) {
47 case V4L2_CID_GAIN:
48 err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
49 break;
50 default:
51 return -EINVAL;
52 }
53
54 return err ? -EIO : 0;
55 }
56
57
tas5110c1b_set_crop(struct sn9c102_device * cam,const struct v4l2_rect * rect)58 static int tas5110c1b_set_crop(struct sn9c102_device* cam,
59 const struct v4l2_rect* rect)
60 {
61 struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
62 int err = 0;
63 u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
64 v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
65
66 err += sn9c102_write_reg(cam, h_start, 0x12);
67 err += sn9c102_write_reg(cam, v_start, 0x13);
68
69 /* Don't change ! */
70 err += sn9c102_write_reg(cam, 0x14, 0x1a);
71 err += sn9c102_write_reg(cam, 0x0a, 0x1b);
72 err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
73
74 return err;
75 }
76
77
tas5110c1b_set_pix_format(struct sn9c102_device * cam,const struct v4l2_pix_format * pix)78 static int tas5110c1b_set_pix_format(struct sn9c102_device* cam,
79 const struct v4l2_pix_format* pix)
80 {
81 int err = 0;
82
83 if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
84 err += sn9c102_write_reg(cam, 0x2b, 0x19);
85 else
86 err += sn9c102_write_reg(cam, 0xfb, 0x19);
87
88 return err;
89 }
90
91
92 static const struct sn9c102_sensor tas5110c1b = {
93 .name = "TAS5110C1B",
94 .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
95 .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
96 .sysfs_ops = SN9C102_I2C_WRITE,
97 .frequency = SN9C102_I2C_100KHZ,
98 .interface = SN9C102_I2C_3WIRES,
99 .init = &tas5110c1b_init,
100 .qctrl = {
101 {
102 .id = V4L2_CID_GAIN,
103 .type = V4L2_CTRL_TYPE_INTEGER,
104 .name = "global gain",
105 .minimum = 0x00,
106 .maximum = 0xf6,
107 .step = 0x01,
108 .default_value = 0x40,
109 .flags = 0,
110 },
111 },
112 .set_ctrl = &tas5110c1b_set_ctrl,
113 .cropcap = {
114 .bounds = {
115 .left = 0,
116 .top = 0,
117 .width = 352,
118 .height = 288,
119 },
120 .defrect = {
121 .left = 0,
122 .top = 0,
123 .width = 352,
124 .height = 288,
125 },
126 },
127 .set_crop = &tas5110c1b_set_crop,
128 .pix_format = {
129 .width = 352,
130 .height = 288,
131 .pixelformat = V4L2_PIX_FMT_SBGGR8,
132 .priv = 8,
133 },
134 .set_pix_format = &tas5110c1b_set_pix_format
135 };
136
137
sn9c102_probe_tas5110c1b(struct sn9c102_device * cam)138 int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam)
139 {
140 const struct usb_device_id tas5110c1b_id_table[] = {
141 { USB_DEVICE(0x0c45, 0x6001), },
142 { USB_DEVICE(0x0c45, 0x6005), },
143 { USB_DEVICE(0x0c45, 0x60ab), },
144 { }
145 };
146
147 /* Sensor detection is based on USB pid/vid */
148 if (!sn9c102_match_id(cam, tas5110c1b_id_table))
149 return -ENODEV;
150
151 sn9c102_attach_sensor(cam, &tas5110c1b);
152
153 return 0;
154 }
155